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Scarica n. 1/2011 - Società Italiana di Tabaccologia

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26<br />

Original Article<br />

stimolazione dell’escrezione<br />

salivare. I campioni <strong>di</strong> saliva<br />

sono stati analizzati entro le<br />

due ore successive la raccolta<br />

a temperatura <strong>di</strong> 4 o C. I campioni<br />

sono stati preparati ed è<br />

stata analizzata la composizione<br />

cellulare degli immunociti<br />

presenti nella saliva utilizzando<br />

un citofluorometro a flusso<br />

BD FACSCanto II (Becton<br />

Dickinson, USA), secondo le<br />

procedure certificate, Patenta<br />

No. 2008120724 as of 23.05.08<br />

(Teplova S.N., Kochengina S.A.,<br />

et al.). La procedura della preparazione<br />

dei campione è stata<br />

basata sulla tecnologia del risciacquo<br />

on con RPMI e bicarbonato.<br />

La composizione delle<br />

cellule immunitarie nella saliva<br />

è stata analizzata utilizzando i<br />

kit basati su anticorpi monoclonali<br />

(MAK) caratterizzati da<br />

quattro coloranti fluorescenti,<br />

la Fluoresceina isotiocianato (FITC), la Ficoeritrina (PE),<br />

la Proteina Peri<strong>di</strong>na-Clorofilla (PerCP), l’Alloficocianina<br />

(APC) dai MultiTest (fabbricati da Beston Dickinson, USA)<br />

e un colorante vitale, il 7-AAD. L’analisi citofluorometrica<br />

della composizione cellulare della saliva ha in<strong>di</strong>viduato<br />

almeno 10,000 eventi. Il numero delle cellule vitali che<br />

esprimevano un antigene leucocitario comune, CD45+,<br />

incluse le popolazioni <strong>di</strong> immunociti come i granulociti<br />

(CD45+CD13+CD14-), i monociti (CD45+CD14+CD13–),<br />

i linfociti T citotossici (CD45+CD3+CD8+), i T-helpers<br />

(CD45+CD3+CD4+), le cellule NK (CD45+CD56+16+), è<br />

stato rilevato usando il 7-AAD. Le cellule sono state <strong>di</strong>stinte<br />

in base all’espressione <strong>di</strong> un marker <strong>di</strong> <strong>di</strong>fferenziazione,<br />

il CD45. Il rapporto CD45+/CD45- delle cellule e<br />

dei pellet cellulari presenti nella saliva sono illustrati nella<br />

Figura 1. Le cellule vitali con un marker <strong>di</strong> <strong>di</strong>fferenziazione<br />

lineare, CD45+, è mostrato nella Figura 2. I livelli<br />

<strong>di</strong> IL-17 nella saliva sono stati misurati utilizzando l’immunoassay<br />

enzimatico con un sistema <strong>di</strong> test, il Human<br />

IL-17A ELISA BMS2017 e BMS2017TEN (Bender MedSystems,<br />

Vienna, Austria), per le analisi dei flui<strong>di</strong> biologici,<br />

con un fotometro, Multiscan plus (Labsystems, Finlanda),<br />

450 nm. La sensitività del test-system era <strong>di</strong> 1 pg/mL. Sono<br />

stati misurati nella saliva i livelli <strong>di</strong> IL-17 prodotta da una<br />

relativamente nuova linea <strong>di</strong> cellule T, Th17, correlati ai<br />

linfociti CD+ [8]. Lo stu<strong>di</strong>o è stato approvato dalla commisione<br />

etica del Dipartimento Sanitario Centrale No.71<br />

dell’FMBA Russia. Il consenso informato è stato ottenuto<br />

da ogni partecipante e lo stu<strong>di</strong>o è stato eseguito secondo<br />

la Dichiarazione <strong>di</strong> Helsinki sui Principi Etici per la Ricerca<br />

Me<strong>di</strong>ca che Coinvolge Soggetti Umani.<br />

Bronco normale in non fumatore<br />

BPCO in fumatore<br />

Altynbaeva E I et al, <strong>Tabaccologia</strong> <strong>2011</strong>; 1: 23-29<br />

water, in dry glass flasks without<br />

stimulation of salivary <strong>di</strong>scharge.<br />

Saliva specimens were analyzed<br />

within 2 hrs after collection at the<br />

maintained at 40C. Saliva specimens<br />

were prepared and cellular<br />

composition of immunocytes in<br />

saliva was analyzed using a flow<br />

cytofluorometer, BD FACSCanto II<br />

(Becton Dickinson, USA), in accordance<br />

with the certified procedure,<br />

Patent No. 2008120724<br />

as of 23.05.08 (Teplova S.N., Kochengina<br />

S.A., et al.).<br />

The procedure of samples preparation<br />

was based on the rinse<br />

technology with RPMI and bicarbonate.<br />

The population composition<br />

of immune cells in saliva<br />

was analyzed using the monoclonal<br />

antibody-based kits (MAK)<br />

labeled with four fluorescent<br />

dyes, Fluorescein Isothiocyanate<br />

(FITC), Phycoerythrin (PE), Peri<strong>di</strong>n-Chlorophyll<br />

Protein (PerCP),<br />

Allophycocyanin (APC) from the MultiTest series (manufactured<br />

by Becton Dickinson, USA), and a vital dye,<br />

7-AAD.<br />

The cytofluorometric analysis of the cellular composition<br />

of saliva accounted for at least 10,000 events. The<br />

number of viable cells expressing a leukocyte common<br />

antigen, CD45+, was accounted for using 7-AAD, inclu<strong>di</strong>ng<br />

populations of immunocytes such as granulocytes<br />

(CD45+CD13+CD14-), monocytes (CD45+CD14+CD13–),<br />

T-cytotoxic lymphocytes (CD45+CD3+CD8+), T-helpers<br />

(CD45+CD3+CD4+), NK-cells (CD45+CD56+16+).<br />

Cells were separated based on the expression of a <strong>di</strong>fferentiation<br />

marker, CD45. CD45+/CD45- ratio of cells and<br />

cell pellets in saliva is illustrated in Figure 1. The gate of<br />

viable cells with a linear <strong>di</strong>fferentiation marker, CD45+, is<br />

shown on Figure 2.<br />

Levels of IL-17 in saliva were measured using enzyme<br />

immunoassay with a test-system, Human IL-17A ELISA<br />

BMS2017 and BMS2017TEN (Bender MedSystems, Vienna,<br />

Austria), for analyses of biological fluids, with a plate<br />

photometer, Multiscan plus (Labsystems, Finland), 450<br />

nm. The test-system sensitivity was 1 pg/mL. The levels<br />

of IL-17 produced by a relatively new line of T-cells, Th17,<br />

related to CD+ lymphocytes, were measured in saliva [8] [8].<br />

The study was approved by the Ethical Committee of<br />

the Central Me<strong>di</strong>cal Sanitary Department No. 71 of the<br />

FMBA Russia.<br />

The informed consent was obtained from each participant,<br />

and the study was performed in accordance with the<br />

Declaration of Helsinki on Ethical Principles for Me<strong>di</strong>cal<br />

Research Involving Human Subjects.

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